/**
 * Copyright 2009-2010 rpn4j.org
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package org.rpn4j.calc;

import java.util.List;

import org.rpn4j.core.Function;
import org.rpn4j.core.Operand;

/**
 * A {@link Function} implementation for calculating the square of a value. 
 * 
 * @author hillger.t
 */
public class SquareRoot implements Function {
	private List<Operand> values;

	public double get() {
		return Math.sqrt(values.get(0).get());
	}

	public void set(List<Operand> values) {
		this.values = values;
	}
}
